Yes, one of the things that often gets overlooked about aging is that if you live long enough everyone you knew, and knew you, from certain eras of your life are gone... and that tends to make your life more ephemeral. Even the settings of your life are slowly removed, be it the house you grew up in, schools you attended, parks and other areas you played in with friends, businesses, styles, products, and technologies. One day you may find yourself looking around and finding nothing and no one that anchors you to the present.
This inevitability is something you should stave off as long as possible. Meet new people, add new experiences, learn new things while avoiding the siren call of nostalgia and the comfort of limiting yourself to the familiar.
Oh no. Am 32 and I really like the comfort of familiar. I've lived a hell of a life in my 20s, spanning multiple countries and continents, and now feel like I've lived many lifetimes worth of life, and am really loving the peace and quiet I now have.
This inevitability is something you should stave off as long as possible. Meet new people, add new experiences, learn new things while avoiding the siren call of nostalgia and the comfort of limiting yourself to the familiar.